Siemens SIMATIC S5 Manual page 252

SEND
RECEIVE
FETCH
CONTROL
RESET
SYNCHRON
DB104 SMDAT
SPRG
DB107
RETOB2
DB150
RETOB13
RETANL
DB152
DB160
DB164 IP-FB164
DB165 IP-FB165
DB166
DB167
LIW
LMDAT
LPRG
DX160
DX161
Handling block S5-1 15U
Handling block S5-1 15U
Handling block S5-1 15U
Handling block S5-1 15U
Handling block S5-1 15U
Handling block S5-1 15U
Write machine data
Write machining program
Save flags OB2
Save flags OB 13
Save flags OB21/0B22 (not required with S5-1 15U)
User DB
User DB (not used in example)
Fixed working DB forFB164
Fixed working DB forFB165
User DB FB1 65, indirect parameter assignment
User DB FB1 65, direct parameter assignment
Read machine data directory
Read machining program directory
Read actual values
Read machine data
Read machine data overview
Read machining program
User DX (only with S5-135U and S5-155U)
User DX (only withS5-135U andS5-155U)
Examples
6 - 5 9